Glory of Texas is fairly common in cultivation due to its ease of cultivation and the beautiful flowers freely produced from early spring to autumn. It is widely distributed in habitat too, its range going from Texas to San Luis Potosí in central Mexico. This extensive distribution range has led to the formation of many local forms which in the years have been formally named. Most of these names are not accepted by many botanists that treat them as synonyms, but they still have a value for a collector because they identify plants with particular characters.